Tenaris Bay City

9 5/8“ PQF® plant for Tenaris Bay City

Leading global manufacturer and supplier of steel tubes Tenaris awarded SMS group a contract to supply a PQF® plant for its Bay City site in Texas, USA. The plant in BCO (bilateral change-over) design will be the company's first seamless tube mill in the US.

This plant produces seamless tubes to close tolerances. It will enable Tenaris to meet the increased demand for precise, high-strength tubes, e.g. for shale gas extraction in the USA. Included in the core components supplied by SMS are:

  • Barrel-type piercing mill with Diescher discs 
  • 6-stand PQF® BCO retained mandrel mill
  • 4-stand extracting mill
  • Induction furnace for shell reheating
  • 24 stand stretch-reduction mill
  • CaliView® roll pass measurement system

Apart from the plant and construction engineering, SMS group is also responsible for supervising both erection and commissioning, plus customer training.

Key data


Bay City, Texas, USA

Production process

PQF® BCO-type

Annual capacity

600,000 t

Diameters produced

41/2"- 95/8"

Wall thickness

5.7 - 25.4 mm